Lock.



No. 735,095. PATENTED AUG. 4, 1903.

A. HAZY.

LUCK.

APPLICATION FILED JAN. 2, 1903.

N0 MODEL.

ffil' If" l# y i IIHIHUHHHHHIHHIMHHIHIHIIHHIIHIHIH HH f" 2. G y I juumunnu... il I Noxjrsaoes.

UNITED STATES Patented August 4, 1903.

ADOLF HAZY, OF NEW YORK, N. Y.

LOCK.

SPECIFICATION forming part of Letters Patent N o. 735,095, dated August4, 1903. Application tiled January Z, 1903. `Serial No. 137,453. (Nomodel.)

To all whom t may concern:

Be it known that I, ADoLE HAZY, a citizen of the United States, residingin New York city, county and State of New York, have invented a new anduseful Improvement in Door-Locks, of which the following is aspecification.

The advantage of the lock lies in the fact that it will resist forceapplied in any and all directions except that proper force intended tobe used in unlocking it-that is, a door provided with this improved boltcan be opened only from the inside. Itis an eectual barrier against 'allattempts to force the lock from the outside.

The device is simple in construction and cheap to manufacture.

To assist in explaining the invention, reference is made to theaccompanying drawings, in which similar letters refer to similar parts.

Figure 1 is a plan vview of the locking device, one side of the casingbeing removed. Fig. 2 is another plan View showing the bolts shot intotheir locking positions. Fig. 3 is a sectional view taken through theline l l of Figl. FigAtis asectional view taken through the line 2 2 ofFig. l.

A is the casing.

Bis the rectangular opening in casing A to permit of the lateral slidingof the guideblock C. This guide-block has an aperture to receive thescrew-pin D, which passes through it and secures a sliding block E.

F is a symmetrical double-armed lever, which has for its axis a pin G.The lever has at the end of each arm lugs H, which project into theaperture I of the bolt J.

K is a shell incasing the bolt J. K there is an opening L to permit ofthe entrance of the lug H into the aperture of the bolt J.

The operation of the mechanism is as follows: Fig. 2 shows the bolts intheir locked position. To draw the bolts, it is necessary simply toslide the screw D to the left, thus In shell raising one arm of thelever H and lowering the other arm, which at the same time Withdraws thebolts within their shells.

Though the bolt is primarily designed for use as a lateral lock, it mayalso be employed to engage the casing of the frame above the door, or itmay be used to bolt the door to the floor, or it may be adapted for useon a safe. Its main use, however, is for the nightdoor of a dwelling.VIn this case the double lock is unnecessary and one of the bolts J maybe removed from the casing or the device may be manufactured without it.

Particular attention is directed to the fact that when in its lockedposition no pressure on any part of the bolt J extending beyond thecasing is sufficient to force the bolt back to its position in the shellK. This condition is secured by the pressure of the arms of the slidingblock E against the arms of the lever F.

Thus having described my improvement, what I claim as my invention, anddesire to secure by Letters Patent, is-

1. The locking device consisting of a combination of a frame having anaperture, a guide-block adapted to move in said aperture, a pinconstructed so as to pass through the guide-block, a sliding blockconnected with the said pin and so formed as to have its arms move inContact with the arms of the lever, a symmetrical double-armed levermoved by said sliding block, a bolt and means for connecting the boltand ends of the lever.

2. The locking device consisting of a combination of a frame, aguide-block, adapted to move in an aperture of said frame, a pin passingthrough the block, a lever adapted to move the bolts, bolts attached toa lever, and a sliding block connected with the pin for moving thelever, substantially as described.

3. A locking device consisting of a combination of a frame and aperturein said frame,

a guide-block to moveA 1in said aperture, a symmetrical double-armedlever, means for sliding the guide-block, and elevating and loweringsimultaneously the arms of a lever, a sliding bolt or bolts connectedwith the arms of the lever, substantially as described.

4. In a locking device, the combination of a symmetrical double-armedlever, a sliding block adapted to move in contact with the arms of thelever and constructed so as to move the lever,means for connecting thelevel` with a bolt or bolts, and bolt or bolts connected with the lever,substantially as de- 1o` scribed.

In Witness whereof I have hereunto set my hand, in the presence of twosubscribing witnesses, this 30th day of December, 1902.

. ADOLF HAZY.

Witnesses: s

CLARENCE GALIOENSTEIN, OTTo M. GoLDsMITH.

